Windows7 Activation

In my windows7 Ultimate, I used wat2.2 to remove the KB971033, now recently I purchased a genuine windows7 ultimate OEM, then I uninstalled the wat2.2 then went for an online activation, here I am unable to activate windows7 with my original new OEM key. It prompt me some error(sorry I can't recall that error).

can anyone help how to activate my windows7 with my new OEM original key.

In my windows7 Ultimate, I used wat2.2 to remove the KB971033, now recently I purchased a genuine windows7 ultimate OEM, then I uninstalled the wat2.2 then went for an online activation, here I am unable to activate windows7 with my original new OEM key. It prompt me some error(sorry I can't recall that error).

can anyone help how to activate my windows7 with my new OEM original key.

Thanks in advance

PK

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Can you show a screen of it? I don't know what wat2.2 does but it sounds like to me that it may have tamered with some system files like wat files. The only thing I can think of is either somehow reinstall the wat update(KB971033) and then try to revalidate or you may have to clean install and just activate like normal.

I'd use a loader and frame the legit COA and hang it on the wall just over the monitor just to get that warm rosy glow that comes from giving M$ a disgustingly large amount of your hard earned reddies.